None of the tools can mine obsidian, emerald tools have 750 uses and speed 7 which is slower than diamond but faster than iron. Ruby tools have 900 uses and speed 5, sapphire tools have same stats as ruby, 900 uses and 5 speed. Amethyst tools have 600 uses and speed 6, topaz tools have 800 uses and 6 speed, phoenixite tools have 700 uses and 6 speed, quartz tools have 650 uses and 6,5 speed, and jade tools has 600 uses and 6 speed.

The sapphire ores spawn under level 48, topaz under 40, ruby and amethyst under 32, phoenixite under 36, quartz under 40 and jade under 44.

Emerald armor has max damage factor of 22, ruby has 25, sapphire also has 25, amethyst has 20, topaz has 23, phoenixite has 24, quartz has 23, and jade has 20.

Phoenixite tools can be repaired by right clicking with them on lava, they also light mobs on fire.

To get glass you first put the gems in furnace to get gem dust, and then you mix a gem dust with two sand and get colored sand, then you can smelt it in furnace and you get colored glass.

There is a modloader version of this mod and a vanilla version. The modloader version requires Modloader and ModloaderMP. The Modloader version of this mod for server only requires ModloaderMP, not Modloader.

Installation:

Forge:

Just place the zip you downloaded into the mods folder in the mods folder in the minecraft directory or the minecraft server directory.

Modloader:

Install Modloader and then ModloaderMP, if you install it for client, drop the zip you downloaded in the mods folder in .minecraft.

If you install it for server place the files from the zip you downloaded into minecraft_server.jar.

Vanilla Client:

Place the contents of the client zip inside minecraft.jar and remove META-INF.

If you downloaded the Modloader version, install Modloader and then ModloaderMP